1 files changed, 7 insertions, 1 deletions
diff --git a/crawl-ref/source/religion.cc b/crawl-ref/source/religion.cc
index a11b5648b5..893853c075 100644
--- a/crawl-ref/source/religion.cc
+++ b/crawl-ref/source/religion.cc
@@ -1049,8 +1049,14 @@ static int _ammo_count(const item_def *launcher)
             continue;
 
         const item_def &item = you.inv[i];
-        if (item.base_type == OBJ_MISSILES && item.sub_type == mt)
+        if (item.base_type != OBJ_MISSILES)
+            continue;
+
+        if (item.sub_type == mt
+            || mt == MI_STONE && item.sub_type == MI_SLING_BULLET)
+        {
             count += item.quantity;
+        }
     }
 
     return (count);